365666400000 has 1728 divisors, whose sum is σ = 1571224435200. Its totient is φ = 83980800000.

The previous prime is 365666399993. The next prime is 365666400007. The reversal of 365666400000 is 4666563.

It is an interprime number because it is at equal distance from previous prime (365666399993) and next prime (365666400007).

It is a tau number, because it is divible by the number of its divisors (1728).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (365666400007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 19245599991 + ... + 19245600009.

It is an arithmetic number, because the mean of its divisors is an integer number (909273400).

Almost surely, 2^365666400000 is an apocalyptic number.

365666400000 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 365666400000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (785612217600).

365666400000 is an abundant number, since it is smaller than the sum of its proper divisors (1205558035200).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

365666400000 is an frugal number, since it uses more digits than its factorization.

365666400000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92 (or 40 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 36.

The spelling of 365666400000 in words is "three hundred sixty-five billion, six hundred sixty-six million, four hundred thousand".